Home / Downblast Vent, Belt Drive, 21-1/2 In

Downblast Vent, Belt Drive, 21-1/2 In

SKU
Brand Dayton
Categories
Description Centrifugal Downblast Roof Exhaust Fan, Drive Type Belt Drive, Assembly Unassembled, Wheel Diameter 21 1/2 in, Base Diameter Not Applicable, Base Length 30 in, Base Width 30 in, Base Shape Square, Nameplate Voltage 208-230/460V AC, Phase 3, Motor Horsepower 3/4 hp, Exhaust Airflow @ 0.000 in SP 5,340 cfm, For High-Static Pressure Applications No, High-Efficiency Motor No, For Air Type Flammable Vapor, Includes Drive Package Yes, Includes Motor Yes, Mounting Location Roof
graingerSKU: 7AF19, mscSKU: , zoro_no: G1708481, mongo_id: 65bbe92822d7a989a993bfdc

Web Price

$3,146.24 / each

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Product Details

Adj. 12 3/8H Roof Curb Stock No. 2ZV83

Adj. 6 3/8H Roof Curb Stock No. 4c454

Agency Compliance & G hazardous locations, F, Motor only UL Listed for Class I Groups C & D andClass II Groups E

Airflow @ 0.000 in SP 4,759 cfm

Airflow @ 0.000 in SP - Range 5,000 to 7,999 cfm

Application Industrial and Commercial Applications

Assembled/Unassembled Unassembled

Assembly Unassembled

Base Diameter Not Applicable

Base Dimension 30 in Square

Base Height 1 3/4 in

Base Length 30 in

Base Shape Square

Base Size - Roof Ventilators 30 in x 30 in

Base Square Size - Roof Ventilators 30 x 30

Base Width 30 in

Bearing Type Regreasable Pillow Block

Brake Horsepower 77/100 hp

CFM @ 0.000-In. SP 5340

CFM @ 0.125-In. SP 5158

CFM @ 0.250-In. SP 4927

CFM @ 0.375-In. SP 4720

CFM @ 0.500-In. SP 4520

CFM @ 0.625-In. SP 4285

CFM @ 0.750-In. SP 4015

CFM @ 0.875-In. SP 3689

CFM @ 1.000-In. SP 3240

Compatible Curb Manufacturer Part Number 2RB79, 2ZV83, 3C437, 4C454, 4HX40, 4HX41, 4HX49

Country of Origin (subject to change) Multiple

Current 3.4 to 3.6/1.8 A

Damper Size 23 x 23 in

Dimension A 30 in

Dimension B 35 1/2 in

Dimension C 34 3/8 in

Dimension D 5 1/2 in

Drive Package Included Yes

Drive Package With Motor Included Yes

Drive Type Belt Drive

Drive Type - Roof Ventilators Belt Drive

Duty Rating - Roof Ventilators Hazardous Location

Electrical Connection Power Cord

Exhaust Airflow @ 0.000 in SP 5,340 cfm

Exhaust Airflow @ 0.000 in SP - Range 5,000 to 10,000 cfm

Exhaust Airflow @ 0.125 in SP 5,158 cfm

Exhaust Airflow @ 0.250 in SP 4,927 cfm

Exhaust Airflow @ 0.375 in SP 4,720 cfm

Exhaust Airflow @ 0.500 in SP 4,520 cfm

Exhaust Airflow @ 0.500 in SP - Range 2,000 to 4,999 cfm

Features Nonoverloading Centrifugal Wheel Design

For Air Type Flammable Vapor

For High-Static Pressure Applications No

Frequency 60 Hz

Hazardous Location Rating Class I Groups C & D, Class II Groups E, F & G

Hazardous Location Specification Class I Group C, Class I Group D, Class II Group E, Class II Group F, Class II Group G

High-Efficiency Motor No

Housing Length 35.5 in

Housing Material Aluminum

Housing Material Fabrication Spun

Housing Width 35.5 in

Hz_ 60

Includes Hazardous Location Motor

Includes Drive Package Yes

Includes Motor Yes

Item - Roof Ventilators Downblast Ventilator

Material Aluminum Blade with Aluminum Housing

Max. BHP 1.09

Max. Inlet Temp. 180 Degrees

Max. Operating Amps 3.4-3.6/1.8

Maximum Fan Speed 860 RPM

Maximum Inlet Air Temperature 180 Degrees F

Maximum Static Pressure 7/8 in wc

Motor Efficiency Standard-Efficiency Motors

Motor Enclosure Totally Enclosed Fan Cooled

Motor Enclosure Design Totally Enclosed Fan-Cooled (TEFC)

Motor Horsepower 3/4 hp

Motor HP 1

Motor HP - Roof Ventilators 1 hp

Motor Location Out of Airstream

Motor Speed 1,725 RPM

Motor Voltage 208/230/460

Mount Type Roof Curb

Mounting Location Roof

Mounting Location - Roof Ventilators Roof

Nameplate Voltage 208-230/460V AC

Nominal Voltage 208-230/460V AC

Number of Speeds 1

Overall Dia. 35 1/2 in

Overall Diameter 35 1/2 in

Overall Height 36 1/8 in

Overall Length 35 1/2 in

Overall Width 35 1/2 in

Package Quantity 1

Phase 3

Propeller Shaft Diameter 3/4 in

Recommended 12 In. Fixed Curb Item No. 2RB79

Recommended 8 In. Fixed Curb Item No. 4HX41

Resistance Properties Weather Resistant

RPM 965

Safety Features Birdscreen

Shaft Dia. Wheel End 3/4 in

Sones @ 0.125-In. SP @ 5 Ft. 16

Sones @ 0.250-In. SP @ 5 Ft. 15.4

Sones @ 0.500-In. SP @ 5 Ft. 14.5

Sound Level 11.1 sones @ 0.750 in SP and 5 ft, 11.4 sones @ 0.625 in SP and 5 ft, 11.4 sones @ 0.875 in SP and 5 ft, 11.8 sones @ 0.500 in SP and 5 ft, 12.4 sones @ 0.375 in SP and 5 ft, 12.9 sones @ 0.250 in SP and 5 ft, 13.3 sones @ 0.125 in SP and 5 ft, 14.1 sones @ 0.000 in SP and 5 ft

Speed Controllable No

Standards AMCA Sound and Air, UL

Voltage - Roof Ventilators 208V AC/230V AC/460V AC

Wheel Dia. 21 1/2 in

Wheel Diameter 21 1/2 in

Wheel Material Aluminum

Wheel Type Backward Inclined